C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

TATA, TCS, CTS, IBM, Wipro, HP, Tamil Nadu Open University TNOU, Maharaja Whiteline,

32 88383

How the processor registers can be used in C ?

HP,

7 8736

What is an volatile variable?

HP,

15 24107




How to access or modify the const variable in c ?

HP, HCL,

16 22729

What is structure padding ?

HP,

3 22690

What is structure packing ?

HP,

2 9833

How to implement call back functions ?

HP,

3 5683

What is an anonymous union and where to apply that ?

HP,

3 5844




How to implement variable argument functions ?

HP,

1 5534

What are advantages and disadvantages of recursive calling ?

HP, College School Exams Tests, Jyoti Ltd, Sage, Wipro, Evolving Systems,

12 82956

How the C program can be compiled?

HP,

10 9233

What are the preprocessors?

HP,

8 8746

what are the various memory handling mechanisms in C ?

HP,

4 6985

what is a function pointer and how all to declare ,define and implement it ???

Honeywell,

4 6813

Give a fast way to multiply a number by 7

Microsoft, Aricent, Accenture,

15 35194


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Un-Answered Questions { C }

If i have an array 0 to 99 i.e,(Size 100) I place the values 1 to 100 randomly like a[0]=29,a[1]=56 upto array[99].. the values are only between 1 to 100. getting the array values by using scanf.. If i entered one wrong element value line a[56]=108. how can i find it.. and also how to find the missing value in 1 to 100.. and i want to replace the missing values.. any one of them know please post your answer..

664


 write a program that will open the file, count the number of occurences of each word in the the complete works of shakespeare.  You will then tabulate this information in another file.

859


Write a C program to accept a matrix of any size. Find the frequency count of each element in the matrix and positions in which they appear in the matrix

592


code for replace tabs with equivalent number of blanks

655


2) Write a program that will help Air Traffic Control for an airport to view the sequence of flights ready for take-off. The airport can accommodate 10 flights waiting for take-off at any point in time. Each flight has a unique 3 digit numeric identifier.  Each time a flight takes-off, Air Traffic Control adds a flight to the waitlist. Each time a flight is added to the waitlist, the list of flights waiting to take-off must be displayed.  When a flight is cleared for take-off, Air Traffic Control removes the flight from the waitlist. Each time a flight takes-off, the list of flights waiting to take-off must be displayed.  Sequence of take-off is the sequence of addition to the waitlist

1640


WHAT IS THE DEFINATION OF IN TECHNOLOGY AND OFF TECHNOLOGY ?

910


what is a function method?give example?

928


why we wont use '&' sing in aceesing the string using scanf

832


FILE PROGRAMMING

829


In this assignment you are asked to write a multithreaded program to find the duplicates in an array of 10 million integers. The integers are between -5000,000 to 5000,000 and are generated randomly. Use 10 threads, each thread works on 1000,000 integers. Compare the time needed to accomplish the task with single thread of execution program. Do not include the time to fill the array with integers in the execution time.

1735


Write a c program to build a heap method using Pointer to function and pointer to structure ?

3203


write a proram to reverse the string using switch case?

1226


a) Identify the following declarations. Ex. int i (integer variable) float a[l0](array of 10 real nos) int (*f())() void *f int (*f()) [] void *f int f[] [] [] char *(*f) () int (*f[]) [] float(*f) [] [] float **f int ******f

689


write a c program to find the sum of five entered numbers using an array named number

755


What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

533